When will Half Life 2 Episode 3 Be Out

The release date for Half-Life 2: Episode Three is currently, said to be sometime in 2012... of course, Valve has not released an official release for Episode Three, but said to expect it in about 2007. Four years later, an official release date has still not been released, nor has it been canceled. For these reasons, many fans have been complaining/worrying that Episode Three is just Vaporware. (Vaporware is something, often some sort of software, that is promised by a company but is never really released or officially canceled. Vaporware is usually used really only to hurt the sales of competitors.)